Water valve



May 16, 1939. B. E. SHAW WATER VALVE `Filed Sept. 23, 1957 Z3 Z'Z @fm/@afar armati Shaw M f y Morne s f valve for connecting l be readily removed for Patented May 16, 1939 UNITED STATES n, l `r2,158,436

PATENT OFFICE 2,158,436 WATER. vALvE Burton E. Shaw, Goshen,

Ind., assignor to Penn Electric Switch Co., Goshen, Ind., a corporation of Iowa.

An object of my invention is to provide a water valve of inexpensive construction especially adapted for regulating the ow of cooling Water to a condenser coil of a refrigerating system such as disclosed in the Henning Patent No. 2,011,220, of August 13, 1935.

A further object of my invention is to provide a valve which has an improved mounting for the pressure operated bellows of the valve, which mounting entirely encloses the bellows and also the adjusting mechanism for the bellows, thus eliminating the necessity of any intermediate bracket between the bellows and the body of the the two together.

Another object is to provide a valve in which the adjusting arrangement is such that a rotatable adjusting sleeve need not move longitudinally of the valve housing, and accordingly a hollow shell may be provided for enclosing the adjusting mechanismfand forming a housing for the bellows and it is merely necessary to provide a slot in the periphery thereof through which access may be had to the adjusting sleeve.

A further object is to provide the valve body with a removable valve seat member which may repair or renewal, the valve body having Va removable portion for gaining access thereto. I

A further object is to provide a removable and replaceable strainer and also a valve plug which is readily removable vand replaceable when the removable part of the valve body is dsassociated from the valve body.

Still a further improved feature of my invention is to provide a dash pot arrangement for the valve plug which prevents hammer knock in theA pipes, prevents vibration due to closing of the va1veand insures proper guiding of the 'valv with respect to the valve seat.

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my water valve, vwhereby the `objects contemplated are attainedas hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawing, in which:

Figure 1 is a perspective View of a water valve embodying my invention. y y

Figure 2 is a vertical sectional view therethrough showing the valve on a slightly enlarged scale; and

Figures 3, 4 and 5 are horizontal sectional views on the lines 3 3, ,4-4 and 5 5, respectively, ofv Figure 2.

On the-accompanying drawing .I have" adapted to normally seat the reference numeral I to indicate a valve body. 'I'he valve body I 0 has a removable part II which is screw-threadedly associated there- With and may be properly gasketed relative thereto. The valve body I IJ has an inlet I2 and an outlet I4 for the like. lLugs I3 are formed on'the valve body I0 for engagement with a wrench when installing or removing the valve" relative to a pipe line.

The valve body I 0 has a partition wall I5 provided withr a central screw-threaded aperture. A valve seat member I6 is adapted to be screwed into the aperture of the partition wall I5. Suitable means is providedl for removing the member I6 from the wall I5. By way of illustration, the member I6 has a bore Il which is otherthan-round in shape, it beingshown as a hexconnection in a water line or.-

agon on the drawing. This bore is adapted to receive a hexagon-shapedrod serving as a tool for rotating and thus installing or removing the valve seat member I6 relative to the partition I5 when the removable part II of the valve body I0 is disassociated from the valve body.

Thevalve seat member I6 is provided'with an annular bead or seat I8. A valve plug I9 is thereagainst. 'I'he valve plug includes an insert of suitable composition for contacting and sealing against the bead I8. 'I'he valve plug I9 has a tubular portion 2l extending slidably into a bore or socket 22 of the valve body part I I. 'I'he tubular part 2| is a Working t in the bore, the parts cooperating to form a guide to prevent any undesired canting of the valve plug. The bore I2 receiving the sleeve 2| acts as a dash pot,` preventing sudden movements of the valve'l especially during the initial opening thereof. Accordingly the sleeve 2| ts in the bore 22 with a few thousandths of an inch clearance. mally retained seated 23 is received in the bore the'sleeve 2I.

To prevent dirt or the like from getting into the valve seat, I provide a tubular strainer screen 24. The, screen 24 is received on a reduced extension 25 of the valve body part II whichserves to properly.align the screen when assembling the valve body. Obviously the screen 24 is removable from the valve body when the portion II is removed therefrom thus facilitating cleaning or replacement of the screen. A screw 261s provided for retaining the insert 20 in position relative to the1plug-I9. The plug I9-i s adapted to .be unseated by a stem '2'I The valve plug I9 is nor-v 'Ihe spring a hexagon are both readily The screenor strainer 24 is readily removable screw 26 and pressing downwardly the tension of the spring 23. The stem 21 is sealed relative to the valve body |0 by a bellows 28, the lower end of which is soldered or brazed to the stern and the upper end of which is soldered or brazed to a washer 29. The washer 29 is retained in position and sealed relative to the valve body l0 by a retainer nut 30.

For actuating the stem 21 I provide a bellows 3|. The bellows 3| has its lower end sealed relative to a ring 32. The ring 32 is mounted in and sealed relative to a shell 33. 'I'he shell 33 is preferably a deep drawn stamping and serves the bellows 3| and a mounting out the necessity of providing bracket for mounting a bellows housing on a valve body. The shell 33 is retained in position relative to the valve body I0 by a plurality of cap screws 34, extending into lugs 35 of the valve body. The bellows 3| has an operating head 36 sealed to its upper end. A pressure connection 31 to the shell 33 permits the introduction of pressure, such as the pressure of refrigerant to the shell for the purpose of collapsing the bellows 3| and thereby opening the valve.

For normally retaining the bellows head 35 in raised position, I provide a spring 38. The tension of the spring 38 and thereby the range of operation of the valve may be adjusted by means ofan adjusting member 39. The adjusting member 39 is slidably and non-rotatably mounted on nut 30 of the valve. For imparting longitudinal movement to the adjusting member 39 and thereretaining the tension of the spring, I provide an adjusting sleeve 4| seating against the nut 30. The sleeve 4| is internally screw-threaded and its threads coact with the adjusting member 39. Thus the sleeve 4| is positioned so that it is non-floating.

Around the periphery of the sleeve 4| I provide a ilange 42. The ilange 42 has notches, as indicated at 43, to receives. screw driver or spanner wrench whereby the'sleeve 4| may be rotatably adjusted. For gaining access to the notches 43, I provide a pair of relatively narrow slots 44 in the shell 33. These are best shown in Figure 1. Since the sleeve 4| is non-floating during adjustment, the flange 42 can always be engaged by the adjusting tool in-any position of adjustment of the adjusting member 39 and with a comparatively narrow slot 44 in the to this construction I am able to enclose the bellows and the adjusting mechanism therefor in a neat appearing housing, thus entirely enclosing the operating parts of the valve. The shell 33 serves the double purpose of a housing for the bellows and amounting therefor. The spring is enclosed by the bellows and the shell.

member I6 and the valve *plug removable and replaceable.

' The valve seat for either cleaning or replacement. Also this construction lends itself well to the provision of a dash pot arrangement which prevents vibra- `.tion of the piping connected with the valve.

This permits adjustment of the valve to a closer differential of operation, experienced with some types of valves, is eliminated in myI construction due to the effective guiding of the valve plug by the bore 22 of the removable portion of the valve body. The

*.13 lconstructional features thus contribute to "a shaped extension 40 of the retainer` as the usual chattering number of advantages from a commercial and operating standpoint.

Some changes may be made in the construction and arrangement of the parts of my device without departing from the real spirit and purpose of my inventionan'd it is my intention to cover by my claims any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.

I claim as my invention:

l. In a water valve, a valve body having an intake and an outlet, a valve seat in said valve body, a valve plug normally seated against said valve seat and means for unseating said valve plug including a hollow shell, the outer end oi said shell forming a bellows chamber, a bellows therein, a pressure connection to said bellows, an adjusting spring in said bellows, a valve plug stem extending from said valve body through said shell .and into said bellows and actuated by movement thereof and adjusting means for said spring and located in said shell between said bellows and valve body, said adjusting means including a rotatable and nonslidable adjusting slidable and non-rotatable spring engaging therewith for adjusting the tension of said spring upon rotation of said adjusting member, said hollow shell having a circumferential slot therein through which access to said adjusting` member may be had for rotating it.

2. In a water valve, a valve body, a valve seat in said valve body, a valve plug for seating against said valve seat and means for unseating said valve plug including a hollow shell, the out-er end of said shell forminga bellows chamber, a bellows therein, an adjusting spring in said bellows, a valve plug stem extending from said valve body through said shell and into said bellows and actuated by movement thereof and adjusting means for said spring located in said shell between said bellows and body, said adjusting rotatable and vnonslidable admay be yengaged nally threaded adjusting member in" said sleeve having an other-than-round .central aperture and an extension on said. valve body fitting said aperture to prevent rotation of said adjusting member upon rotation of said sleeve.

3. In a water valve, a valve structure and' means for operating said valve structure including a hollow shell having an open end connected with said valve structure, the outer end of said shell forming a bellows chamber, a bellows therein and operatively connected with said valve structure, a pressure connection to said bellows, an adjusting spring for said bellows, and adjusting means for said spring located in said'shell, said adjusting means including a rotatable and nonslidable adjusting sleeve internally threaded, an externally threaded adjusting member in said sleeve and having an other-than-round central aperture and an elongated extension from said valve structure fitting said aperture to prevent rotation of said adjusting member upon rotation of said sleeve.

4. In a water valve, a valve body having an intake and an outlet, a valve seat in 'said valve body, a valve plug normally seated against `said valve seat and means for unseating said valve plug including a hollow shell, the outer end of said shell forming a bellows chamber, a bellows therein, a pressure connection to said bellows, an adjust- GlA ing spring in said bellows, a. valve plug stem extending from said valve body through said shell4 and unto said bellows and actuated by movement thereof and adjusting means for said spring located in said shell between said bellows rotary adjusting member, means for preventing movement thereof longitudinally of` said hollow shell during rotating adjusting thereof and means for permitting access through the wall of said able and non-rotatable spring engaging member threadedly connected therewith for adjusting the tension of said spring upon rotation of said adjusting member, said hollow shell having an opening-therein through which access to said adjusting member may be had for rotating it.

adjusting member for adjusting the tension of said spring upon rotation members coacting with each adjusting member having said second adjusting member said first adjusting member.-

8. In a water BURTON E. SHAW. 

